Gun powder and kinetic energy
An explosion involve generally chemical reactions.
Fireworks certainly don't involve nuclear energy!
Fireworks involve combustion and thermal decomposition reactions.
it is type of nuclear reaction because nucleus is involve in this type of reaction while in ordinary chemical reaction only valance electron of atoms involve
Because this reaction involve chemical compounds as reactants and products and the chemical structure and composition being changed.
Cooking involve many chemical transformations.
Cooking involve many chemical reactions.
Yes, sunburn involve a chemical reaction.
Yes, chemical weathering involve chemical reactions.
This is a chemical reaction.
Flammability involve a chemical reaction - oxidation.
Explosions could be caused by a chemical reaction, or they could have a mechanical cause. It could even be nuclear. If a stick of TNT goes off, it's chemical, while a compressed gas cylinder with a failing weld that explodes while being filled is mechanical. A nuclear weapon is driven by nuclear reactions. All involve a rapid and violent release of energy. The thing that makes an explosion is the speed of the activity, whether it be chemical or mechanical. A high explosive anti-tank round is a chemical weapon, while a ballistic "spear" (perhaps made with depleated uranium) used to defeat modern armor is a mechanical weapon.